Non gemtext static files

* Static file handler now attempts to use "file-type" if it is available 
to read the magic bytes of a file and get Mime type
* Fixed a crash if the client closed the socket prematurely
* Move README to gmi
This commit is contained in:
MatthiasSaihttam 2021-10-09 21:05:56 -04:00
parent 7761c18fd5
commit 2dabbc0969
8 changed files with 317 additions and 10 deletions

1
.gitignore vendored
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@ -1 +1,2 @@
*.pem
node_modules

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@ -220,6 +220,9 @@ export default class GeminiServer {
}
}
});
// This can be just ECONNRESET
socket.on("error", console.error);
});
server.listen(1965);
}

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@ -57,8 +57,8 @@ server.registerPath("localhost/allFiles", new ExampleHandler());
// We will provide some convenient handlers for static, CGI, and reverse proxy
//if the passed file is a single file, it's a file. If it's a directory, all sub-files are auto-included
server.registerPath("localhost/static/about.gmi", new StaticHandler("/tmp/content/about.gmi" /*, {options}*/));
server.registerPath("localhost/static", new StaticHandler("/tmp/content/" /*, {options}*/));
server.registerPath("localhost/static/about.gmi", new StaticHandler("README.gmi" /*, {options}*/));
server.registerPath("localhost/static", new StaticHandler("static/" /*, {options}*/));
// server.registerPath("localhost/static", new StaticHandler("/tmp/yourmom/" /*, {options}*/));
//The file passed to CGI handler must exist and be executable at run time

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@ -3,6 +3,9 @@ import * as fs from "fs";
import DefaultHandler from "./default.js";
let fileTypeFromFile;
import("file-type").then(ft => fileTypeFromFile = ft.default.fromFile).catch(console.error);
export default class StaticHandler extends DefaultHandler {
constructor(basePath, directoryList = false) {
super();
@ -18,7 +21,7 @@ export default class StaticHandler extends DefaultHandler {
// This is the handler
// url is the URL object, with url.pathname being the path. p is the 'client-side' basepath
handle (url, p) {
async handle (url, p, socket) {
const relativePath = path.relative(p, url.pathname);
//Concat and normalize the passed URL as being relative to the base path
const toServe = path.join(this.basePath, relativePath);
@ -32,7 +35,7 @@ export default class StaticHandler extends DefaultHandler {
if (fs.statSync(toServe).isDirectory()) {
console.log(`File is a directory and directoryList is ${this.directoryList}.`);
if (this.directoryList) {
//TODO: Static content directory listing
} else {
return "51 Not Found\r\n";
}
@ -43,9 +46,31 @@ export default class StaticHandler extends DefaultHandler {
return "51 Not Found\r\n";
}
//TODO: import mmmagic
let mimeType = "text/gemini";
if (fileTypeFromFile) {
const type = await fileTypeFromFile(toServe);
// `type` will be undefined if the file is plaintext
// In which case we want to fall down to serving plaintext
if (type) {
mimeType = type.mime;
}
}
//TODO: some file-ending based logic, please
//So we can serve md and txt
//TODO: convert line endings
const data = fs.readFileSync(toServe);
return "20 text/gemini\r\n" + data;
// I read somewhere that `readFileSync` on every request is a bad idea, but I don't care
socket.write(`20 ${mimeType}\r\n`);
const fileReader = fs.createReadStream(toServe);
//This function (handle) needs to return after we're done writing the file to the stream
//Because the place that called this is going to handle .end() the socket
//So we don't end the socket here, and we make a promise to wait for the reader to end before returning
//It would be great if we could just not return from this function but I don't think that's how this works
fileReader.pipe(socket, {end: false});
await new Promise((res, rej) => fileReader.on("end", res));
return "";
}
}

275
package-lock.json generated Normal file
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@ -0,0 +1,275 @@
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@ -1,11 +1,14 @@
{
"name": "astronomical-theater",
"version": "v2.0.5",
"version": "v2.1.0",
"author": "Matthias",
"license": "CC0-1.0",
"type": "module",
"main": "main.js",
"scripts": {
"start": "node main.js"
},
"optionalDependencies": {
"file-type": "^16.5.3"
}
}

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